Device for the purpose of threading the warp-threads into the heddles.



0. VON MEYENBURG.

DEVICE FOR THE PURPOSE OF THREADING THE WARP THREADS INTO THE HEDDLES.

APPLIUATION FILED APR.22, 1910. 1 076 598, I Patented Oct. 21, 1913.

3 SHEETS-SHEET l.

7727/165565 Jill axial" coLuMmA PLANDGRAPH (IO-,WASHINGTDN. n. c.

0. VON MEYENBURG.

DEVICE FOR THE PURPOSE or THREADING} THE WARP THREADS INTO THE HEDDLES.

APPLICATION FILED APR.22, 1910.

Patented Oct. 21, 1913.

3 SHEETS-SHEET 2,

Jrzl erziar 7h? "eases 0. VON MBYENBURG. DEVICE FOR THE PURPOSE OFTHREADING THE WARP THREADS INTO THE HEDDLES.

APPLICATION FILED APR.22, 1910.

1,076,598 I Patented 0ct.21,1913.

3 SHEETS-SHEET 3.

COLUMBIA PLANonRAPH co., WASHINGTON, D. c.

TTED STATES PATENT OFFTQE.

OTTO VON MEYENBUBG, OF ZURICH, SWITZERLAND.

DEVICE FOR THE PURPOSE OF THREADING THE WARP-THREADS INTO THE HEDDLES.

Specification of Letters Patent.

Patented Oct. 21,1913.

Application filed April 22, 1910. Serial No. 557,016.

To all whom it may concern Be it known that I, OTTO voN MEYENBURG,engineer, citizen of Switzerland, residing at Zurich, S itzerland, haveinvented certain new and useful Improvements in Devices for the Purposeof Threading the \Varp- Threads into the Heddles, of which the followingis a specification.

My invention relates to improvements in means for drawing warp threadsinto and through heddle eyes, and may be employed in connect-ion with awarp thread drawing-in machine of the type disclosed by British LettersPatent No. 8707 of February 141, 1907.

Machines of the type referred to usually contain, as an essentialfeature thereof, means for successively selecting individual threadsfrom a row of such threads, said means including a member movableagainst the row to separate from the latter at predetermined intervals athread and properly position the same to be drawn through the heddle.Such selecting means form the object of my copending application forLetters Patent, filed April 22, 1910, Serial Number 557014. Machinesofthe type above referred to also include a device for selecting andseparating the indi vidual heddle cords, said device comprisingoscillating, adjustable and fixed arms which cooperate in selecting andseparating a heddle, at predetermined times, from the series of heddlecords and holding the series of cords separate from the one selected.

A device of the character thus briefly described in the statementimmediately preceding is made the object of my copending application forLetters Patent, filed April 22, 1910, Serial Number 557015. Finally, themachine above referred tois also provided with a device for threadingthe warp threads through the heddle eyes, said device having a suitablemember for drawing through the heddle eye the thread separated by thefirst mentioned mechanism and which said heddle is held in readiness forthreading by the second mentioned mechanism.

The last mentioned type of mechanism forms the object of the presentinvention and the means for drawing the threads through the heddle eyesconsists of a hooked needle in combination with a guide arm therefor,said arm having a forked or bifurcated head adapted to engage a heddleat each side of the eyes therein and thus hold the eye in properposition. The invention further includes means for placing the warpthread in the needle hook and to so actuate the needle that it draws thethread through the heddle eye.

The preferred embodiment of my invention is illustratively exemplifiedin the accompanying drawings, wherein Figures 13 show side elevationswith different positions of the working parts while in action. Fig. t isa plan, Figs. 5 and 6 show details enlarged, Fig. 7 shows a section on AB in Fig. 1.

A shaft a is free to rotate in suitable bearings of a frame work g.Between the bearings it is of square cross-section, and on this squarepart a conical gear wheel is fitted so that it can slide on a betweenits bearings. This gear wheel 5 (Fig. l) gears with another similar one5 The latter drives by means of a shaft Zr" (Fig. 5) supported by aslide 7, and of gear wheels 0 and c a gear wheel cl. Wheel 0 togetherwith (Z are free to swing about 6 The wheel cl gears with a rack c whichhas a shape as shown in Figs. 4:, 5 and 7. A pin (Z which rests on adividing partition 6 serves also as guide. The slide rests on two bars kand h On to slide f is attached a fork g with hook-shaped ends, andwhich may swing in a vertical plane about the attaching pin. This forkserves as a carrier for the warp-thread. Between bars 7L and 72.2 athird 2' (Fig. 7) is provided which supports a slide (Fig. 3). A rod 2'serves as further guide for slide 70. On to slide is an arm on whichcarries a long and fine-hooked needle *0, Fig. 6, is attached, which bymeans of a spring a is kept toward the right, but which by means of anelectrically releasable catch a is at times kept in a position as shown.

Arm m terminates in two fork-shaped tongues m and MP, of which m is freeto swing about a pivot on m. Whenever m comes into contact with m theelectric circuit is established and catch a is released by the action ofthe electromagnet. Fork 9 is in fore-part supported by two rollers at.The slide 70 carries at one side a catch 70 which may engage with f onslide 1 and thus couple the two slides together. With slide 70 a rod 0is connected which is proother, in front of parts 7 and m.

vided with an adjustable collar 0 which may come into contact with armconnected to catch 70 Rod 0 slides together with slides 7 and releasesas soon as it strikes one of the stops A A A A by means of collar 0catch k On to a projection on slide it an angular lever 2 79 is pivoted.29 may come into contact with a pin a connected to needle n. A spring 72draws p and therefore needle n toward the right. The other arm 79 of thelever carries a roller p which is free to move along a path (1, which atits extreme right end is inclined, but otherwise horizontal. As acontinuation of the inclined part of this path Q a linked path 1" isprovided which has to be mounted by the roller when slide 70 moves fromright to left. Onreturning, however, the roller willv simply lift 1" andthus follow 9. Lever p is held in its extreme left position by means ofa lever-stop s, which again may be released by 8 on slide f. At thismoment the slides have approached each other sufli 'cient to allow catch70 to engage with j.

The arrangement of parts 5 and s is such as to cause, on a furtherapproach of the slides toward each other the catch .9 to be raised, inorder that when the two slides are coupled together the lever stop 8 isfree to move once more and ready to keep arm 72 in its extreme leftposition. Slide f is pro vided with a double ended incline t with whicha bolt u is in contact. This bolt a is free to move vertically in asuitable hole in slide is. The needle n is provided with a pin a whichis in line with and above bolt it whenever needle a is in its extremeright position relatively to the arm m. Hereby is it made possible toraise needle or on a further approach of the two slides toward eachother.

This device is to serve harness consisting of one or more shafts e. 9.four 1V N and W. These are fixed, the one behind the In order that thewarp-thread may be drawn through the eyes of the four shafts in propersuccession beginning with the first heddle of the first shaft andproceeding to the first heddle of the second shaft, etc, the heddles arein succession brought into a suitable position, so that the eyes areplaced between m and MF. The heddles not under operation are kept asidein order that the parts m and 9 may have room to move. At the same timewhile one heddle e. g. that indicated at 1V is being detached and placedin position the respectivestop e. 9. that indicated at A has to bebrought into the path of rod 0.

The mode of operation of this device is as follows Supposing all partsto be in their starting position as in Fig. 1. Shaft a is made to rotateas indicated by arrowhead. This movement will be transmitted by b b 0and c to wheel cl which will commence to travel along the rack and bothsides are taken along toward the left. During this motion roller 29* iscompelled to ascend 1 and to thus compel lever 79 to move against thepull of 79 toward the left, where it is kept in position by s. The twoslides will continue to IHOXQ together until the rod 0 strikes that stopwhich belongs to the heddle to be threaded. The very moment rod 0strikes one of the stops A A the eye of the heddle is just aboutopposite the point of needle n which is kept back by n and between thetwo tongues m and m of arm m. Owing to the pressure of the head of arm magainst the heddle its eye is compelled to place itself flat against itsend. Rod 0 upon striking A is kept back, and as the slides continue tomove k is released by collar 0 Slide it becomes thereby detached andremains behind while slide f proceeds. (Fig. Bolt a is now made toascend the incline 2? whereby through aid of pin a the arm m is raiseduntil the pivoted tongue m strikes the eye of the heddle. The eye isthereby brought exactly in line with needle 71-. against the eye theformer is made to turn slightly, whereupon the electric circuit isestablished. The needle n is releasedby a being drawn down by theelectromagnet and is quickly drawn through the eye of the heddle springn But herewith pin a gives up its position above bolt o arm at cannot,therefore, be raised any farther. Slide f continues to move toward theleft until hook of fork 9 reaches the warp-thread which .was kept inreadiness. The thread on being caught returns with fork g and is made toapproach the hook on a. As soon as the bent in fork 9 reaches thesupporting rollers m 9 is lowered and thus places the thread on needle91. Immediately afterward 8 is released by s and is by spring 79 and pinn made to draw needle n back until roller 79 strikes 9. Needle a isstill projecting through the eye, but as soon as slide f moves a littlebackward toward the rightit strikes against slide 70 thus causing thelatter to return also. The thread is hereby completely drawn through theeye, and shortly before the roller reaching the end of oath g is takenfrom needle 71 to some other evice not shown. When after this the roller72 de scends the incline at the end of path 9 lever 9 moves under theinfluence of spring 79? still farther toward the right and Withdraws theneedle a completely, whereby a can once more catchbehind n. The slide fcan now once more advance with slide 70 in order that all the'variousparts may again operate and another heddle become threaded. All thefirst heddles of the four shafts having been done the others are servedlikewise in turn. Hereby it will be found necessary to place the deviceopposite the row of heddles The tongue m being carriedto be threaded;and suitable arrangements, which, however, are not part of thisinvention, may be made with this end in view.

After having thus described the nature of my invention what I claim asnew and for .which I desire protection by Letters Patent is:

1. In a device for the purpose of threading warp threads into heddleeyes, the combination with a reciprocable hooked needle for drawing warpthreads through heddle eyes, of a movable arm for guiding the needle,said arm having a forked head for engaging a heddle above and below theeye, means for placing the warp thread into the hook of the needle, andmeans for moving the needle to draw the thread through the heddle eye,substantially as described.

2. In a device for the purpose of threading warp threads intoheddle-eyes, the combination with a reciprocable hooked needle of an armmovable in the direction of the needle and serving to guide the needle,said arm having a forked head for engaging a heddle above and below theeye, a reciprocable hooked fork adapted to receive a warp thread and tolay it on the hook of the needle and means for moving the needle to passthrough the heddle eye and, when returning to draw the thread throughthe latter, substantially as described.

3. In a device for the purpose of threading warp threads into heddleeyes, the combination with a reciprocable hooked needle of an armmovable in the direction of the needle and serving to guide the latter,said arm having a forked head for engaging a heddle above and below theeye, means whereby said arm is vertically oscillated to place the needlepoint directly behind the heddle eye, a reciprocable hooked fork adaptedto receive a warp thread and to lay it in the hook of the needle andmeans for moving the needle to pass through the heddle eye and, whenreturning to draw the thread through the latter, substantially asdescribed.

4. In a device for the purpose of threading warp threads into heddleeyes, the combination with a reciprocable hooked needle, of an arm,movable in the direction of the needle and serving to guide the latter,said arm having a forked head for engaging a heddle above and below theeye, means whereby said arm is vertically oscillated to place the needlepoint directly behind the needle eye, means to keep back the needleuntil the needle point is placed directly behind the heddle eye andmeans for releasing the needle to pass through the eye, a reciprocablehooked fork adapted to receive a warp thread and to lay it in the hookof the needle and means for returning the needle to draw the threadthrough the heddle eye, substantially as described.

In a device for the purpose of threading warp threads into heddle eyes,the combination with a reoiprocable hooked needle, of an arm, movable inthe direction of the needle and serving to guide the latter, said armhaving a forked head for engaging a heddle above and below the eye,catches serving to keep back the needle in its guiding arm, one part ofthe said forked head being formed by a plate pivoted and suitablyconnected with the catches and means to oscillate the said armvertically to place the needle point directly behind the heddle eye,whereby the pivoted plate in striking the eye is turned and actuates thecatches for releasing the needle to pass throughthe eye, a reciprocablehooked fork adapted to receive a warp thread and to lay it in the hookof the needle'and means for returning the needle to draw the threadthrough the heddle eye, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

OTTO VON MEYENBURG.

Witnesses CARL GUBLnR, AUGUST Rune.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

